Loose-leaf binder



Dec.

R. M. WATSON LOOSE LEAF BINDER Filed July 11, 1925 2 Sheets-Sheet lATTORNEY.

Dec 24, 1929. w so 1,740,936

LOOSE LEAF BINDER Filed July 11. .1925 2 Sheets-Sheet 2 ATTORNEY.

Patented Dec. 24, 1929 NTTE$ STATES RICHARD M. WATSON OF DETROIT,MICHIGAN LOOSE-LEAF BINDER Application filed July 11, 1925. Serial No.42,882.

This invention relates to loose leaf binders. and has for its object aloose leaf binder that reaches almost the minimum in cost ofconstruction, yet which provides an efficient, at-

tractive binder.

Loose leaf binders of a very simple construction are now manufacturedand are sold by the 5 and -cent stores. These binders usually comprise asingle-crease folder with 10 grommeted perforations through which arethreaded rings which may be opened or closed. These rings thereforeproject through the outside of the folder on either side and comequently always lie on the table, thus calculated to injure the finish.

It is the object'of the present invention to provide a much improvedconstruction of binder which can be used with the singlecrease folder.The single-crease folder is employed only in the cheapest loose leafbooks for the reason that it eliminates the two-fold construction, whichalmost necessarily requires the use of a fabric to strengthen thecreases. This fabric adds relatively large expense. proportional to thecost of the binder.

Consequently it is not used in the very cheapest binders which areintended for sale in the 5 and lO-cent stores. It is the object of thepresent invention to provide an improved construction of this type.

Referring to the drawings:

Fig. 1 is a perspective view of one form of the invention before theleaves are inserted.

Fig. 2 is a perspective view of the same with the leaves inserted.

Fig. 3 is a fragmentary plan view of one end of the base plate, the ringbeing shown in section.

Fig. 4L is a cross section through the binder when the same is closed.

Figs. 5 and 6 are perspective views of another form of the invention.

Fig. 7 is a section on the line 7-7 of Fig. 5.

Fig. 8 is a fragmentary cross section of the same.

a designates a folder which is made of heavy paper, fibre board, strawboard, pulp board, or similar material. It has one crease Z). Thisfolder has a pair of slots c0 in one leaf. Immediately opposite theseslots on the other leaf is riveted a base strip of metal 6, whichsupports a pair of paper-retaining rings 7. The metal strip istransversely corrugated to support these rings, which may be welded tothe corrugation or tied thereto by striking in the metal as at 9, Fig.3.

These rings are permanent rings which do not separate but which areprovided with slightly spaced ends at it, which permits the insertion ofthe leaves as is shown in Fig. 2. lVhen the other leaf of the folder isturned over to the closed position as shown in Fig.

4, the slots 0 pass over the tops of the rings and consequently the twoleaves of the folder can close upon the paper. Obviously when the bookis closed the paper is kept away from the entering slots h of the ringso there is no possibility of the escape of the paper. hence the coverconstruction co-operates with this type of ring in preventing the escapeof the leaves.

Another form of the invention is shown in Figs. 5 to 8, inclusive. Herea slightly different base strip is employed. and is provided with aturned-over bead or socket y' at one edge. which forms a journal bearingfor the rod portion 7a which connects the two rings 792. These rings canrock open or shut. As is shown in Figs. 5 and 6. there is a slightfriction where the ends of the rings pass down into the notch n in theend of the corrugation. This is indicated in Fig. 8. This slightfriction serves to retain the rings in closed nosition under ordinarycircumstances. Here again, in this form.'the one leaf is slotted as atcc, so that the one cover leaf may be turned over toward the other coverleaf.

It will be apparent from this construction that aloose leaf binder of amore efficient and better character is provided for the singlecreasefolder. This binder not only stifi'eus the back, but inasmuch as therings protrude only through the top of the binder they are 9 notcalculated to scratch the surface of the table, desk or other article offurniture.

Another important feature of this construction is that when the binderis open and in use it lies flat on the desk. 100

What I claim is: r v 1. A loose leaf binder, comprising a foldable coverand a base plate positioned adja cent the point of folding, the edge ofsaid plate remote from said point of folding, being provided with abossed-up bearing receiving a spindle of a prong element having aplurality of prongs for holding the leaves, and a plurality of bossed-upbeads extending transversely of said base plate and provided Withopenings for receiving said prongs, said cover being provided withopenings cooperating With said prongs and transverse beads.

2. A loose leaf binder, comprising in combination a folder formed of asingle piece of material and provided with a crease to perinit folding,a plurality of openings in one sheet of said folder adjacent saidcrease, a flat base plate secured to the other sheet adjacent the otherside of said crease, said base plate being provided With paper holdingrings, a bead formed along one edge of said base plate opposite thecrease for forming a general bearing for the ring members and struck-upportions extending transversely of said base plate and provided Withopenings for receiving the open ends of said paper retaining rings, saidrings and transverse struck-up portions cooperating With said openings.

In testimony whereof I have aflixed my signature. r

' RICHARD M. WATSON.

